EP4170809A1 - Sekundärbatterie und endgerät - Google Patents

Sekundärbatterie und endgerät Download PDF

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Publication number
EP4170809A1
EP4170809A1 EP21834251.7A EP21834251A EP4170809A1 EP 4170809 A1 EP4170809 A1 EP 4170809A1 EP 21834251 A EP21834251 A EP 21834251A EP 4170809 A1 EP4170809 A1 EP 4170809A1
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EP
European Patent Office
Prior art keywords
elongation rate
separator
positive electrode
negative electrode
secondary battery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21834251.7A
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English (en)
French (fr)
Inventor
Zhengjie LI
Yaoming Deng
Xinzhi Zhang
Yunlei GAO
Dongfang Yang
Da HONG
Fengchao Xie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of EP4170809A1 publication Critical patent/EP4170809A1/de
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/463—Separators, membranes or diaphragms characterised by their shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/054—Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/624—Electric conductive fillers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/661—Metal or alloys, e.g. alloy coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/665—Composites
    • H01M4/667—Composites in the form of layers, e.g. coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/411—Organic material
    • H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/411—Organic material
    • H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
    • H01M50/417—Polyolefins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/411—Organic material
    • H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
    • H01M50/423—Polyamide resins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/411—Organic material
    • H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
    • H01M50/426—Fluorocarbon polymers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
    • H01M50/451—Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
    • H01M50/491—Porosity
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
    • H01M50/494—Tensile strength
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M2004/021—Physical characteristics, e.g. porosity, surface area
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the elongation rate of the separator is greater than or equal to 120%. In some other implementations of this application, the elongation rate of the separator is greater than or equal to 150%.
  • the separator with a higher elongation rate can better play a protective role when the battery is damaged by an external mechanical force, for example, the battery is pierced by a foreign matter, and can alleviate an internal short circuit, thereby blocking thermal runaway in advance and improving battery safety.
  • the functional materials include one or more of lithium iron phosphate, lithium manganese iron phosphate, lithium vanadyl phosphate, lithium-rich manganese-based material, artificial graphite, natural graphite, hard carbon, soft carbon, carbonaceous mesophase spherule, carbon nanotube, graphene, carbon fiber, vapor-grown carbon fiber, activated carbon, porous carbon, acetylene black, Ketjen black, conductive ink, thermally expanded microsphere, polyethylene, polyamide, polybutadiene, ethylene-ethyl acrylate, ethylene-vinyl acetate copolymer, fluorinated ethylene-propylene copolymer, polyethylene terephthalate, polypyrrole and its derivatives, polyvinylidene fluoride, polytetrafluoroethylene, polyamide, sodium carboxymethyl cellulose, styrene-butadiene rubber, aluminum oxide, silicon oxide, zirconium oxide, aluminium hydroxide oxide, hexagon
  • the elongation rate of the current collector is less than 3%.
  • the current collector with a low elongation rate can effectively reduce a probability that the current collector scraps, generated when the battery is pierced by a foreign matter, disperse into the active material layer, and can therefore reduce occurrence of a contact short circuit.
  • a lower elongation rate of the current collector indicates a greater tensile strength, better mechanical properties, and better processing performance.
  • the secondary battery further includes a packaging shell, and the one or more battery cell assemblies are packaged in the packaging shell.
  • positive electrode plates and/or negative electrode plates and separators in a plurality of (two or more) battery cell assemblies are configured in the foregoing manner.
  • positive electrode plates and/or negative electrode plates and separators in the plurality of battery cell assemblies are all configured as follows: An elongation rate of the separator is greater than 100%, a ratio of the elongation rate of the separator to the thickness of the active material layer is 3.0%/ ⁇ m to 8.0%/ ⁇ m, and a ratio of the elongation rate of the separator to the elongation rate of the current collector is greater than or equal to 60.
  • Lithium cobalt oxide was used as a positive electrode active material, and an aluminum foil was used as a positive electrode current collector.
  • a positive electrode active material layer was uniformly coated on a surface of the positive electrode current collector, where the positive electrode active material layer was made of 97.0 wt% lithium cobalt oxide, 1.6 wt% polyvinylidene fluoride, and 1.4 wt% conductive carbon black. Then, the positive electrode current collector was dried at 80°C, and was subject to cold pressing, cutting, slitting, and vacuum drying, to obtain a positive electrode plate.
  • An elongation rate of the separator was 180%, an elongation rate of the positive electrode current collector was 2%, an elongation rate of the negative electrode current collector was 2%, a thickness of the positive electrode active material layer was 38 ⁇ m, a thickness of the negative electrode active material layer was 50 ⁇ m, ratios of the elongation rate of the separator to the thickness of the positive electrode active material layer and the thickness of the negative electrode active material layer were 4.7%/ ⁇ m and 3.6%/ ⁇ m, respectively, and a ratio of the elongation rate of the separator to the elongation rate of the current collector was 90 (the ratio is set to a same value for the positive electrode current collector and the negative electrode current collector).
  • a preparation method herein is the same as the method of Embodiment 1, with differences only in the following:
  • a thickness of the positive electrode active material layer in Embodiment 25 is 43 ⁇ m
  • a thickness of the negative electrode active material layer is 55 ⁇ m
  • ratios of the elongation rate of the separator to the thicknesses of the active material layers are 4.19%/ ⁇ m and 3.27%/ ⁇ m, respectively.
  • a preparation method herein is the same as the method of Embodiment 1, with differences only in the following: A thickness of the positive electrode active material layer in Embodiment 26 is 44 ⁇ m, a thickness of the negative electrode active material layer is 56 ⁇ m, and ratios of the elongation rate of the separator to the thicknesses of the active material layers are 4.09%/ ⁇ m and 3.21%/ ⁇ m, respectively.
  • a preparation method herein is the same as the method of Embodiment 1, with a difference only in that the positive electrode current collector is an aluminum foil having PTC functions of polyethylene and conductive carbon black.
  • a ratio of an elongation rate of the separator to an elongation rate of the positive electrode current collector is 171.
  • a preparation method herein is the same as the method of Embodiment 1, with a difference only in that the negative electrode current collector is a copper foil with a poly-1-butylpyrrole coating.
  • a ratio of an elongation rate of the separator to an elongation rate of the negative electrode current collector is 160.
  • a preparation method herein is the same as the method of Embodiment 1, with a difference only in that the positive electrode current collector is an aluminum foil with an elongation rate of 4% and the negative electrode current collector is a copper foil with an elongation rate of 4%.
  • a ratio of an elongation rate of the separator to the elongation rate of the positive electrode current collector is 45, and a ratio of the elongation rate of the separator to the elongation rate of the negative electrode current collector is 45.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Cell Separators (AREA)
EP21834251.7A 2020-06-28 2021-06-28 Sekundärbatterie und endgerät Pending EP4170809A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010598014.3A CN113937415A (zh) 2020-06-28 2020-06-28 二次电池和终端
PCT/CN2021/102850 WO2022001987A1 (zh) 2020-06-28 2021-06-28 二次电池和终端

Publications (1)

Publication Number Publication Date
EP4170809A1 true EP4170809A1 (de) 2023-04-26

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Application Number Title Priority Date Filing Date
EP21834251.7A Pending EP4170809A1 (de) 2020-06-28 2021-06-28 Sekundärbatterie und endgerät

Country Status (4)

Country Link
US (1) US20230163417A1 (de)
EP (1) EP4170809A1 (de)
CN (1) CN113937415A (de)
WO (1) WO2022001987A1 (de)

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CN113809475A (zh) * 2021-09-15 2021-12-17 珠海冠宇电池股份有限公司 一种电极组件及其应用
CN114497705B (zh) * 2022-01-26 2023-11-17 北京航空航天大学 MXene/介孔聚吡咯复合材料及其制备方法和电极、储能器件
CN115312892B (zh) * 2022-10-10 2023-03-24 宁德新能源科技有限公司 电化学装置及电子设备
CN116111041B (zh) * 2023-04-07 2023-07-28 宁德新能源科技有限公司 一种正极极片、二次电池和电子装置

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JP6413351B2 (ja) * 2013-06-19 2018-10-31 株式会社Ｇｓユアサ 蓄電素子
JP2016085844A (ja) * 2014-10-24 2016-05-19 株式会社豊田自動織機 蓄電装置
CN104979565B (zh) * 2015-05-26 2018-01-19 广东烛光新能源科技有限公司 一种电化学储能器件
KR102022582B1 (ko) * 2015-09-21 2019-09-18 주식회사 엘지화학 안전성이 향상된 전극 및 이를 포함하는 이차전지
US20190221880A1 (en) * 2016-06-08 2019-07-18 Nissan Motor Co., Ltd. Nonaqueous Electrolyte Secondary Battery
KR102167115B1 (ko) * 2016-07-07 2020-10-16 주식회사 엘지화학 이차전지용 전극 및 그러한 전극의 제조방법
CN111164817B (zh) * 2017-10-13 2023-09-01 株式会社Aesc 日本 锂离子二次电池
KR102203691B1 (ko) * 2017-11-06 2021-01-15 주식회사 엘지화학 안전성이 향상된 이차전지용 전극과 이의 제조방법, 및 이 전극을 포함하는 이차전지
CN110911617A (zh) * 2019-12-10 2020-03-24 安徽新衡新材料科技有限公司 一种高韧聚烯烃锂离子电池隔膜及其制备方法

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WO2022001987A1 (zh) 2022-01-06
CN113937415A (zh) 2022-01-14
US20230163417A1 (en) 2023-05-25

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